Manually Configuring A Vpc Peer Switch Role - Cisco nexus 5000 series Configuration Manual

Configuring Virtual Port Channels
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# vpc domain domain-id
3. switch(config-vpc-domain)# system-priority priority
4. (Optional) switch# show vpc brief
5. (Optional) switch# copy running-config startup-config
DETAILED STEPS
Command or Action
Step 1
switch# configure terminal
Step 2 switch(config)# vpc domain domain-id
Step 3
switch(config-vpc-domain)#
system-priority priority
Step 4 switch# show vpc brief
Step 5 switch# copy running-config
startup-config
This example shows how to configure a vPC peer link:
switch# configure terminal
switch(config)# vpc domain 5
switch(config-if)# system-priority 4000

Manually Configuring a vPC Peer Switch Role

By default, the Cisco NX-OS software elects a primary and secondary vPC peer switch after you configure
the vPC domain and both sides of the vPC peer link. However, you may want to elect a specific vPC peer
switch as the primary switch for the vPC. Then, you would manually configure the role value for the vPC
peer switch that you want as the primary switch to be lower than the other vPC peer switch.
vPC does not support role preemption. If the primary vPC peer switch fails, the secondary vPC peer switch
takes over to become operationally the vPC primary switch. However, the original operational roles are not
restored when the formerly primary vPC comes up again.
Before You Begin
Ensure that you have enabled the vPC feature.
You must configure both switches on either side of the vPC peer link.
OL-25842-01
Purpose
Enters global configuration mode.
Selects an existing vPC domain on the switch, or creates a new vPC
domain, and enters the vpc-domain configuration mode. There is no
default domain-id; the range is from 1 to 1000.
Enters the system priority that you want for the specified vPC domain.
The range of values is from 1 to 65535. The default value is 32667.
(Optional)
Displays information about each vPC, including information about the
vPC peer link.
(Optional)
Copies the running configuration to the startup configuration.
Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1)
Manually Configuring a vPC Peer Switch Role
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